DELTARUNE Mockup Battle Toy

I wanted to test uploading assets, like PNGs/GIFs to HTML using Gamemaker Studio. Turns out it's not TOO difficult, just a bit strange. I made this toy where you can essentially make a 'mockup' fight with any picture and some text. All music, sprites and assets belong to Toby Fox. Play DELTARUNE here! (ctrl+c, ctrl+v) Replace the boss sprite by copy + pasting it in. P to upscale the enemy sprite. O to downscale the enemy sprite.